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Every spring, the City of Manassas and Fairfax Water, the drinking water suppliers to Prince William Water, temporarily switch from using chloramines as the main disinfectant in their water treatment process to free chlorine. According to our water suppliers, this short-term change is a best practice for the drinking water industry and makes it easier to implement a flushing program for the distribution system.

Free chlorine is also used to disinfect drinking water, but it is a stronger disinfectant than chloramines.

Chloramines are a disinfectant used in drinking water to remove bacteria and viruses. 

We maintain a limited number of existing grinder pumps by individual contract. If your residence contains a Prince William Water grinder pump, you will notice a service fee included on your monthly bill.  

If you are having any issues with the device, call (703) 335-7990 to request assistance.

If your monthly bill has a noticeable increase in consumption for which you can’t account for, you should:

• Check your premises for leaks. Remember that you as the customer are responsible for all water passing through the water meter, so repairing leaks on your side of the meter will save you from paying for water you may not be using. A common internal leak that can lead to a higher-than normal bill is a leaking toilet.  To detect if a toilet is leaking, you can add a few drops of food coloring or dye tablets to the tank behind the commode. Let it sit for 3 hours. If you see colored water in the commode or the water in the tank is now clear, this is an indication that you have a toilet leak.  
• Check all faucets, showers, outdoor spigots, and irrigation heads for possible leaks.  
• If you are unable to locate the cause of increased water usage, please call one of our Customer Service Representatives who will arrange for a service technician to visit your property and assist you in identifying potential causes. You can call Monday-Friday, 8 a.m.-5 p.m. at (703) 335-7950. 

An Authorized User previously established on the account can request a loved one’s account to be closed. If an Authorized User is not listed on the account, we require appropriate documentation that the person making the request is Authorized to act (typically a death certificate and Will or Executor-related documents). 

A sewer cleanout is a pipe with a cap (generally located near a customer’s property line) that provides access to a sewer line so that blockages can be inspected and removed. 

If your cleanout is missing a cap, call (703) 335-7990 and we will replace it as a courtesy service.

Some Prince William Water employees are considered essential personnel, including employees who are on-call for weekends and evenings. On-call employees take marked Prince William Water vehicles home so that they may respond more quickly to water and sewer emergencies. 

Some employees take marked Prince William Water vehicles home so that they can respond quickly to water and sewer emergencies. Be assured these vehicles are used only for official purposes to protect the health and safety of our community and the environment.

No. However, please make sure that the main valve and all water fixtures are in the off position before your water is turned on.